Note: Descriptions are shown in the official language in which they were submitted.
The in~ention relates to ~m apparatus for emptying the content of
tin can-like containers filled with viscous stock substances, particularly
fillers or cemellt and/or hardener pastes with a centrally or eccentrically
formed discharge opening and with or without a supporting member fitted to the
container wall.
It is often considered disadvantageous that in particular those
containers able to receive a number of kilograms and used for viscous substances,
particularly fillers and cements can only be emptied completely in rare cases
and even then only by means of considerable effort and additional devices,
such as spatulas, trowels or the like, otherwise residue to the container COII-
tent is left in the containers which are then thrown away. In addition, it is
difficult to handle the container content, due to the highly viscous consis-
tency of the substance. It is also considered disadvantageous that the
application of the stock substances and hardener pastes to a spatula always
takes place in such a way that there must subsequently be a mixing of the two
substances. As the discharge openings of the containers for the fi.ller and for
the hardener pastes are in most cases at a considerable distance apart, some
of the substances to be mixed can flow past the relatively small spatula.
~urthermore, when removing the content of the container by introducing a spatula
2a into the inner area thereof the substance in the container is contaminated by
hardened substance portions adhering to the spatula and becoming detached
therefrom.
The object of the present invention is therefore to prov:ide an
apparatus permitting a metered removal of viscous substances, i.e. stock sub-
stance and hardener pastes from containers, particularly by means of integrated
removal openings and which permits the complete emptying of the said containers.
~ According to the invention, there is provided apparatus for
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dispensing viscous fluid from cylindrical containers comprising: a support
structure including an upper support member and a lower support member; piston
means comprising a first and a second piston member mounted relative to said
upper support member for movement toward said lower support member; means for
driving said first piston member, a U-shaped colmecting member joining to-
gether said first and second piston members to enable said second piston member
to be driven jointly with said first piston member by said driving means for
said first piston member; container means comprising a first cylindrical con-
tainer and a second cylindrical container each having therein viscous fluids
to be dispensed mounted be-tween said upper and lower support members in align-
ment, respectively, with said first and second piston members to effect
dispensing o$ fluid from said containers by movement o-f said plston ~nembers;
orifice means in the bottoms of said first and second containers through which
flui.d may be dispensed; fluid outlet means in 10w communication with said
orifice means in each o said containers for dispensing theref.rom the fluid
contents o$ said containers, said fluid outlet means including first and second
inlet ori$ices in said lower support member adapted to be aligned, respectively,
with said orifice means in the bottoms of said first and second containers and
first and second outlet orifices located in close ~uxtaposition to each other
for enabling the fluids in said first and second containers to be jointly dis-
pensed at locations closely adjacent each other; and centering means for
aligning said container means in operative positions between said upper and
lower support members in alignment with said piston means with said orifice
means in the bottoms of said containers being aligned in flow communication,
respectively, with said first and second inlet orifices of said fluid ou~let
means.
The invention is described ln greater detail hereinafter relative
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to non-limitative embodimellts and the attached drawings, wherein:
Figure 1 shows an apparatus for the simultaneous, metered emptying
of the contents of two containers for stock substance and hardener paste with
containers placed in the apparatus, partly in side view and partly in vertical
section.
Figure 2 shows a can-like containerJ partl~ in side view and partly
in vertical section.
~ igure 3 shows two containers arranged in a supporting structure
with the discharge connections issuing into a common partial emptying head in
a front view.
~igure 4 is a side view of the partial emptying head.
Pigure 5 is a plan view of the partial empt~ing head o~ Figure ~.
~igure 6 is a side view of the partial emptying head of Figure ~.
~igure 7 is a plan view of a locking member for the partial emptying
head.
~igure 8 is a side view of the locking member of ~lgure 11.
~igure 9 shows a partial emptying device with a container and an
adaptor.
The apparatus ~or emptying the contents o~ tin can-like containers
2Q accordlng to the invention comprises a supporting structure 5, constructed in
bow-shaped or ~rame-shaped manner and which serves to receive two containers
100 and 200. Contalner 100 is used for receiving a stock substance, such as
$111er or cement, whilst container 200 receives the hardener paste.
The two containers 100 and 200 are constructed in tin can-shaped
manner~ but it is also possible for the hardener paste container 200 to be
constructed in cartridge-like manner. The bottoms of the two containers 100
and 200 are provided with discharge openings 106, 206, which can be arranged
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centrally or eccentrically in the base plate of the containers. The two open-
ings 106, 206 can be sealed by means of closures, such as stoppers, screw
caps or the like 108. The closure is removed when the container is put into
use.
As shown in Figure 1, supporting structure 5 comprises a retaining
clip 10 with an upper web 11 and a lower web 12. The ~wo webs 11, 12 are inter-
connected by means of webs 13. The retaining clip 10 is arranged in such a way
that webs 11, 12 are positioned horizontally, whilst web 13 which connects webs
11 and 12 is positioned vertically.
The upper web 11 carries working cylinder 20 which is constructed
in known manner and which contains a drivable piston, not shown in the drawing,
whose piston rod 21 is passed through a bore 14 in the upper web 11 of retain-
ing clip 10. The piston rod end located in the space between the two webs 11,
12 carries a plate-like piston 22. If container 100 is provided with a pressure
cover displaceable in the inner area thereof~ the piston 22 need only be
dimensioned in such a way that there is an adequate action on the pressure
cover. However, i~ container 100 does not have a pressure cover displaceable
in its inner area, piston 22 has a cross-sectional shape which corresponds to
the cross-section of container 100. At 25 a starting~stopping switch for work-
ing cylinder 20 or a similar suitable drive means is provided.
In the feed path of piston 22 of working cylinder 20 lower web 12
carrles a base plate ~acing the upper web 11 and which can have a circular,
square or rectangular cross-section. The cross-section of plate 30 is
dependent on the cross-section of the container 100 to be placed in the appara-
tus. Base plate 30 is used for the centering of container 100 and is provided
with a centering device 90, which cooperates with container 100 and a descrip-
tion thereof will be glven hereinafter.
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Base plate 30 has an orifice 31, which is align~d with an orifice 15
in lower web 12. A pipe connection 16, provided with a check valve 17 and
which forms a partial emptying device ~00 is comlected to bore 15 in lower web
12. As shown in Pigure 1, pipe connection 16 can also be bent at an angle in
order to permit an easier removal of the stock substance from container 100 on
actuating the apparatus. However, it is also possible, whilst omitting the pipe
connection 16, to connect the partial emptying device 400 directly to the
discharge opening of container 100.
In the embodiment of Figure 1, orifice 31 in base plate 30 has an
lQ opening 31 which widens at the top and more details of this will be given here-
inafter in connection with the description of container 100.
~ s shown in ~i~ure 1, supporting structure 5 is constructed for
receiving a further hardener paste container 200, together with container 100.
To this end~ the supporting structure 5 has a mounting support 150 integrated
into structure 5. -Mounting support 150 is constructed in such a way that the
container 200 is secured vertically in the apparatus. Container 200 can also
be provided with a pressure cover 230 displaceable in the longitudinal direction
~ of the inner area o$ the container. Tt is also possible to use a container 200,
; which does not have a pressure cover. Container 200 is provided with a discharge
opening 206 at the botto~.
Th~ lower area o$ ~ounting support 150 can be constructed in
` accordance with base plate 30 and serves to centre container 200 in the same way
as for container 100. However, plate 30 can also be constructed in such a way
that it has centering devices 90 f~r containers 100 and 200.
According to~igure 1~ a pipe connection 216 with an incorporated
check valve 217 is connected to base plate 150a of mounting support 150 for
container 200 in such a way that connection 216 is aligned with the discharge
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opening 206 oE container 200. ~lowever, it is also possible in this embodiment
to connect the discharge opening 206 of container 200 directly with the check
valve 217 or the partial emptying device 400. Advantageously, when using a pipe
connection 216 the discharge ends of the two connections 16 and 216 are arrangedin juxtaposed manner, so that the stock substance and hardener paste can be
applied to a spatula for mixing purposes.
Container 200 is emptied by means of a ll-shaped connecting member
300. The two limbs 302, 303 of member 300 are interconnected by means of a web
301. Of limbs 302, 303 limb 302 which faces and is parallel to working cylinder
20 is passed through a bore 305 in the upper member 11 of retaining clip 10
of supporting structure 5. The free end 302a of limb 302 is fixed to piston
22 of workîng cylinder 20. The limb 302 has a length which at least corresponds
to the height of container 100, so that then in the lowermost position of piston22 of working cyllnder 20, web 301 oE member 300 is positioned above the all-
round rim of container 100.
The other limb 303 of member 300 has a length corresponding to limb
302 and carries at its ree end 303a a plate-like piston 322 which is passed
; into the inner area of the can-shaped container and when container 200 is pro-
vided with a pressure cover 230 acts on the latter.
Piston 322 o member 300 moves in the same wa~ as piston 22 of
working c~linder 20, so that simultaneously with the forcing out of stock sub-
stance from container 100, hardener paste is orced out of container 200. The
diameters of the two containers 100, 200 are matched to one another in such a
way that on squeezing out stock substance hardener paste is squeezed out of
container 200 in each case in the necessary ratio. ~lowever, it is also possibleto construct member 300 in such a way that hardener paste and stock substance
are alway~s metered in the necessary ratio.
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Container ]00 Eor the s-tock substance which can be placed in the
retaining clip 10 oE the apparatus is, according to Figure 2, cons-tructed in
tin can-like manner and has a circular, square or rectangular cross-section.
The cross-sectional shape of container lO0 coincides with the cross-sectional
shape of base plate 30 of retaining clip 10.
Container 100 has a vertical container wall 100 and is sealed for
transportation by means of a cover 102 after the filling of the filler. The
base of container 100 is 103 and its inner area is 104.
Inner area lO~ of container 100 contains a pressure cover 130 freely
displaceable in the longitudinal direction of said container and comprises a
pla-te-like blank with a laterally upwardly bent rim and having a cross-sectional
shape and a diameter corresponding to the cross-sectional shape and diameter of
container 100. The displacement of pressure cover 130 in imler area 10~ oE
container 100 is brought about by means of piston 22 when working cylinder 20 is
appropriately actuated. The cross-sectional shape and diameter of container 100
correspond to the cross-sectional shape and diameter of base plate 30, so that
a container lOQ placed on plate 30 covers the latter with its base portion 103.
The bottom of container 100 is also provided with an all-round rim
105, the construction o-f the rim with respect to the construction of the con-
2Q tainer base portion 103 being such that if a container 100 is placed on base
plate 30, the rim 105 of container 100 overlaps the lateral rim of base plate
30, so that the latter serves to centre container 100 in the emptying device.
The discharge opening 106 is provided in base portion 103 of con-
tainer 100 and is reinforced by an outward bend 107, so that opening 106 can be
sealed by ~eans of a stopper 108 made from plastics materials or the like.
The height Oe bend 107 eormed on the outside of the container base
portion 103 and bounding the discharge opening 106 is less than the height of
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the rim 105 of contalner 100 extended over base portion 103.
Por the contents of container 100 to be forced out of the discharge
opening 106 thereof, on operating the pressure cover 130 via piston 22 of
working cylinder 20, opening 106 in container base portion 103 and opening 31a
of orifice 31 in base plate 30 are aligned with one another, so that the stock
substance forced out of discharge opening 106 can pass through orifice 31 in
base plate 30 and the orifice 15 in lower web 13 to pipe connections 16 and can
consequently be discharged.
If the discharge opening 106 in container base portion 103 is
arranged eccentrically, then opening 31a of orifice 31 in base plate 30 is also
eccentric. It is important that when container 100 is placed on base plate 30
its discharge opening 106 coincides with the opening 31a of orifice 31 in base
plate 30. No pipe connection need be connected to orifice 31 in base plate 30.
It is possible to directly conTIect the discharge opening 106 of container 100
with the partial emptying device 400.
The opening of orifice 31 in base plate 30 is constructed in such a
; way that when container 100 is placed on base plate 30 the outward bend 107 in
the vicinity o$ discharge opening 106 on container base portion 103 comes to
rest in said opening 31a, so that container 100 by its base 103 is flat on the
top of base plate 30, whilst avoiding any gap. This specific construction of
opening 31a of orifice 31 in base plate 20 also serves to centre the container
lO0 and in particular when the discharge opening 106 in container base portion
103 and orifice 31 in base plate 30 are arranged eccentrically with respect to
the centre of the container. The special construction of base 103 of container
100 and that of base plate 30 supplement one another to form the centering device
,' ~0.
The base portion 103 of container lO0 need not, however, have the
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bend 107 described hereinbefore and said bend can also be directed inwards. It
is also possible for the container base to be flat and to be provided with an
outflow port into which an appropriately shaped insert can be ~ntroduced and
which then serves to centre container 100 with base pla-te 30.
In the embodiment shown in Figure 1, container 100 has a height
corresponding to the spacing between the two webs 11, 12 of retaining clip 10
of supporting structure 5. Piston 22 of working cylinder 20 can also be
constructed in plate-like manner and have a shape and a diameter corresponding
to the shape and diameter of the pressure cover 130 in inner space 104 of con-
tainer 100. When using a plate-like piston 22, it is ensured that the pressure
cover 130 is subject to uniform pressure action during an actuation of working
cylinder 20. Container 100 is then inserted in retaining clip 10 by lateral
tilting and mounting the base portion 103 of the container on base plate 30 and
subsequently bring the contalner into the vertical positioll, so that base 103
rests on base plate 30~ whilst the container rim 105 laterally overlaps the sameand is therefore held in centered manner in the retaining clip. Container 100
need not have a rim 105 if a different].y constructed centering device 90 is
used.
; ~or an additional securing of container 100 in retaining clip 10,
it is also possible to provide retaining devices, for example in the form of
tension springs 120, 121, whose bottom ends 120a, 121a are laterally ixed to the
base plate 30, whilst their upper free ends 120b, 121b are provided with engage-ment hooks 125, 125a which engage in the upper all-round rim of the container
when the latter is mounted on base plate 30 and consequently give container 100
an additional hold in the retaining clip 10. A random number of tension springs
can be used, this depending on the size of the container employed. The bottom-
side attachment of the tension springs 120, 121 to base plate 30 is such that
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rim 105 of container lO0 in no way prevents a lateral overlapping of the base
plate 30. Ilowever, it is also possible to fix the bottom ends of tension
springs 120, 121 to the lower web 12 of supporting structure 5. It is also
possible to provide differently constructed mounting supports for container
100 on base plat.e 30.
If container 100 is provided with a bow-shaped frame 110 eixed by
means of connecting devices lll,llla to the container wall 101 it is possible
for arrangement of tension springs 120, 121 for the engagement hooks 125, 125a
thereof to engage in connecting devices 111, llla.
The height of the container 100 used is dependent on the spacing
of the two webs 11, 12 of retaining clip 10. Advantageously, the emptying
apparatus is set up in such a way that it can receive a five kiLogram stock sub-
stance container, but it is also possible to use larger or smaller contalners,
lf the apparatus is correspondlngly dlmensioned.
Container 200 can be constructed in the same way as container 100,
but need not be held ln supportlng structure 5 by means of mounting supports.
However, it is also possible to fix container 200 in free-standing manner on the
base plate associated therewith.
In order to be able to use containers of different size with the
same emptying apparatus~ webs 11, 12 are constructed so that their spacing
can be varied. In order to be able tQ vary the spaclng between the two webs
11, 12, web 13 which interconnects webs 11, 12 is constructed in telescopable
manner, so that webs 11, 12 can be moved towards or away from one another. In
this connection, a corresponding dimensioning of the working cylinder is impor-
tant, so that its piston rod has a corresponding length if containers 100 with
a lesser height are used. If containers 100 of different heights are used, it
is important that all these containers are designed in such a way that the rim
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105 thereof can be placed on the base plate 30 and that the discharge ports
106 thereof come to rest in the vicinity of orifice 31 oF base plate 30.
Retaining clip 10 can be fixed to a wall or the like.
As Figu~e 3 shows in simplified form, the discharge openings of the
two containers 100, 200 are combined by means of pipe connections 405, 406 to
form a common partial emptying head 410.
Partial emptying head 410, which represents the partial emptying
device 400J is provided with a locking member 411 and is constructed as a
generally prismatic body having a circular segment-shaped, spherical end face
415 (Figures 4 to 61. Two inlet openings 421, 424 are provided on the top 443
of partial emptying head 410, said openings being associated with outlet pipes
405, 406 or directly with the discharge openings Oe the two containers 100,
200. Discharge opening 423 associated with the inlet opening 421 for supplying
the hardener paste is connected to inlet opening 421 by means of a duct, advan-
tageously constructed as an inclined bore 422. As a result, discharge openirlg
423 is moved closer to the discharge opening 426 $or supplying the filler. A
slot 429, 430 is formed on the faces on either side of discharge opening 423.
The end porticns 439, 440 of end face 415 and the lateral faces 416, 417 are
constructed as cham$ers 427, 428. Slot 429 can have a sealing member inserted
therexn.
ReCeSSeS 418 are prQvided on lateral faces 416, 417 and into said
recesses~can be inserted pivot pins about which the locking member 411 can be
pivoted. The pivoting range of locking member 411 is limited by an upper stop
419 and a lower s*op 420. Both stops 419, 420 are arranged on lateral faces
416, 417 and can f~r example be formed by projecting pins.
Locking member 411 has a U-shaped cross-section and comprises a
longttudinal web 431, on each of whose ends is provided a transverse web 434,
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435. Transverse webs 434, 435 have openings 436> 437 into which can be in-
serted the pivot pins placed in recesses 418. Transverse web 434 also contains
a connecting member 438 for a handle 412.
Closure connections 413, 414 associated with the discharge openings
423, 426 are provided on the face of longitudinal web 431 remote from the par-
tial emptying head 410. Each of the connections 413, 414 has a recess 432, 433,
open towards the discharge openings 423, 426. On either side of the longi-
tudinal web 431 and associated with the closure connections 413, 414 can be
provided sealing ledges 441, 442 (~igure 7~, extending between the chamfer 439
and slot 429 or between slot 429 and slot 430. These sealing ledges 441, 442
are preferably constructed in such a way that the~ permit a shearing of .sub-
stances discharged from discharge openings 423, 426, without there being any
substance residue at the end of the metering process.
With partial emptying head 410 closed, slot 42~ serves to prevent
mixing of hardener paste discharged from opening 423 with stock substance dis-
charged Erom opening 426. Slot 430 in end face 415 also serves to receive the
hardener paste discharged from opening 423.
Partial emptying head 410 permits a joint partial emptying of stock
substances and hardener pastes in separate containers 100, 200. By means of the
directly juxtaposed discharge openings 423, 426 it is possible to apply the
hardener paste and stock substance to small spatulas without there being any loss
~E material. Howe~er, locking member 411 can also be constructed differently.
Thus, it is possible to provide the locking member with sealing member inserts
by means of which the discharge openings can be sealed.
If containers 100, 200 of different sizes are used in the apparatus
according to the invention, the limbs 302, 303 of member 300 are constructed
so that their lengths can ke varied, thereby ensuring a completely satisfactory
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discharge o~ the contents of the two contalners 100, 200. This adjustability
of length of the limbs 302) 303 can be brought about by a telescopic construc-
tion of each of said limbs.
In order to be able to use containers lO0 or 200 with discharge
openings 106 having di:fferent dimensions, according to Figure 9 an adaptor 700
is arranged on the supporting structure 5 and has a through-bore 701, which can
be positioned centrally or eccentrically in accordance with the arrangement of
the discharge opening 106. This bore 701 connects the clischarge opening 106 of
container 100 or 200 with the inlet opening of partial emptying device 400, to
which end the upper openings 702 o~ bore 701 is adapted to the size of the dis-
charge opening 106 of container 100 or 200, whilst the lower opening 703 of bore
701 is adapted to the size of the inlet opening of partial emptying devi.ce ~00.
If containers with dxfferent discharge opening dimensions are used, the parti-
cular adaptor 700 matched to the discharge opening is employed.
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